diff --git a/src/osg/Sequence.cpp b/src/osg/Sequence.cpp
index 8b5460096..ef0360691 100644
--- a/src/osg/Sequence.cpp
+++ b/src/osg/Sequence.cpp
@@ -402,7 +402,7 @@ int Sequence::_getNextValue()
     int _sbegin = osg::minimum(_ubegin,_uend);
     int _send = osg::maximum(_ubegin,_uend);
 
-    int v = _value + _step;
+    int v = _value + _step * static_cast<int>(osg::sign(_speed));
 
     if (_sbegin==_send)
     {